Are you serious? They had the likes of Dida (back when he was world-class), Nesta, Maldini, Pirlo, Gattuso, Seedorf, Rui Costa, Shevchenko, Pato, Inzaghi in their team (through the years). Wouldn't you call that team world-class? You're confusing me right now. Why do you keep hammering on that 06 year? What I do know is that in the 06/07 season they mostly played with one striker (Inzaghi) and Kaka played the supporting striker role and they won the CL that season. After that, their team started to decline. But he was the manager of a team that was without a doubt world-class for 6 years (2001-2007), you could argue about the quality of the team in two following years.